Can Cats Eat Parsley?
Not really recommended. Parsley is listed by the ASPCA as toxic to cats because it contains furanocoumarins, but large amounts are usually needed to cause problems; a tiny nibble is less concerning than concentrated forms or repeated exposure.
Parsley is not a good treat for cats
The ASPCA lists parsley (Petroselinum crispum) as toxic to cats due to furanocoumarins, which can cause photosensitization, especially after larger exposures. A small accidental nibble is often low risk, but parsley should not be offered as a regular treat, and concentrated forms like oils or supplements are more concerning.
How urgent is this?
Go to the ER now
- ● Cat ate parsley essential oil, extract, seed product, or a concentrated supplement
- ● Cat is having trouble breathing, severe lethargy, collapse, tremors, or seizures after exposure
- ● Cat has significant skin redness, pain, or blistering after eating parsley and then going into sunlight
See a vet within 24 hours
- ● Cat ate a large amount of fresh parsley or repeatedly eats parsley from the garden
- ● Vomiting, diarrhea, drooling, weakness, or unusual hiding develops after ingestion
- ● You are not sure whether the plant was culinary parsley or another look-alike plant
Watch at home, call if it worsens
- ● Cat nibbled one or two leaves of fresh culinary parsley and seems completely normal
- ● A small amount of parsley was present as a minor ingredient in food and your cat has no symptoms
Why Parsley Is Risky for Cats
Parsley is not an appropriate snack for cats. Unlike the dog page, the ASPCA classifies parsley as toxic to cats because of furanocoumarins, which may cause photosensitivity; cats are also generally poor candidates for herbal add-ins because they are obligate carnivores and can be more sensitive to certain plant compounds, especially in concentrated oils or extracts.
- Do not intentionally feed parsley to your cat, even as a garnish or breath freshener
- A tiny accidental nibble is usually less worrisome than eating a large amount
- Avoid dried powders, seed preparations, extracts, and essential oils — these are more concentrated
- Watch for vomiting, diarrhea, drooling, lethargy, or skin irritation after sun exposure
- If your cat ate more than a small taste, or you are unsure about the plant, call your vet
Common Questions
Is parsley toxic to cats?
What symptoms can parsley cause in cats?
Is parsley safer for dogs than for cats?
Can my cat eat a small amount of parsley in cooked food?
Are parsley oils or supplements more dangerous than the fresh herb?
Sources
- Parsley — ASPCA
- Common Cat Hazards — Cornell Feline Health Center
- Overview of Photosensitization in Animals — Merck Veterinary Manual
- Essential Oil and Liquid Potpourri Poisoning in Cats — VCA Animal Hospitals
Disclaimer: The information provided in this article is for educational purposes only and does not constitute veterinary medical advice. Reading this content does not establish a veterinarian-client-patient relationship. Every pet is different — always consult a licensed veterinarian before making decisions about your pet's health, diet, or care. If you'd like personalized guidance, you can talk to one of our vets. If your pet is experiencing a medical emergency, contact your local emergency animal hospital immediately.
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